Cigarette machinery



April 14, 1931. w. E. MOLINS ETAL 1,801,169

CIGARETTE MACHINERY Filed July 8, 1929 2 Sheets-Shee 1 l/Vl fll 74/25Attorn 0 April 14, 1931.

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Filed July 8, 1929 2 Sheets-Sheet 2 Patented Apr. 14, 1931 PATENT OFFICEWALTER EVERETT MOLINS AND ALBERT ALEXANDER STONE, OF LONDONQENGLANDCIGARETTE MACHINERY Application med July s, 1929, Serial No. 376,736,and in Great Britain August 2a, 1928.

a object the provision of such a device wherein the cutting 'bladefisalways maintained at right angles tothe axis ofthe cigarette rod and ismoved during the cutting operation in thefdirection ofthe axis of thecigarette rod without imparting a reciprocating moveanglestothe axis ofthe ment to any as the-parts of the cutting dev1ce.*

The present invention consists of a cutting device for severing anaxially moving rod into lengths which comprises a shaft secured againstaxial displacement, a blade or blades operatively connected "to saidshaft at a fixed point along the length of the same in such a manner, asto be revoluble about the axis of said'shaft in a plane, which includesthe said fixed point and is inclined to a plane normal to the axis ofthe moving rod and means operable to maintain each blade normal-to thedirection of the axis of the moving rod throughout the entire path ofthe blade. I u l Further, the present invention consists of acuttingdevice for severing an axially moving rod into lengths whichcomprises a shaft secured against axial displacement. a blade or bladesoperatively connected to a disc or the. like carried by said shaft at afixed point along the length of the same in such a manner that the planeof the disc or the'like is maintained during rotation at a constantangletdthe axis of the rod. and a plane nor- 'maltotheaxis"of therod,and means onerableto maintain the blade or blades at right rod duringthe cutting operation. q

,{Theinvention w;ill be more particularly described with reference tothe accompanying'drawings, in;which: 1 a a a Fig- 1.,is a sideelevation, partly in section, of one method of carrying the inventioninto effect. a a ,7 Fig.2 is an end elevation of Fig.- 1 looking in thedirection of the arrow A, and

Fig. 3 is a sectional elevation of a modified form of the apparatusillustrated in Figs. 1 and 2.

Referring to Figs. 1 and 2, the apparatus comprises a disc 1 secured toa shaft 2 at a fixed point along the length of the same. The shaft 2 iscarried in a bearing bracket 3, and is so mounted that the plane of theplate 1 is inclined to the axis of the cigarette 16.

Mounted co-axially with the discl is a fixed pinion 1 attached to thespindle hearing bracket and adapted to drive a second pinion 5 idlymounted upon the disc 1 and arranged to gear with athird pinion 6carried upon a spindle 7 rotatably mounted near the outer edge of thedisc 1. The spindle 7 is provided atthe free end thereof with anextension piece or head 8 arranged at an angle to the axis of thespindle 7. The head is in the form of a circular disc and a sleeve 9 isrotatably mounted thereon, but the sleeve 9 is held in a stationaryposition relatively to the disc 1 by means of a fork 10 extending atright angles from the surface of the disc 1 and engaging with anextension 11 on the sleeve 9 which carries the rol ler 12. The sleeve 9has a cutting blade 13 mounted thereon, the blade being clamped byaplate 1 1. i

The knife 13 is of the usual sickle shape as shown inFig' 2, and acounter-weight 15 is mounted at the opposite end of thc'plate 1 tobalance the apparatus, just described.

The inclination of the head 8 of the spindle 7 is such that the plane ofthe knife 13 is at right angles to the axis of the cigarette rod 16, andowingto the arrangement of gearing, previously described, the cuttingedge of the knife always points in the same direction throughout theentire revolution of the disc 1. c

In addition to the above, the knife receives a lateral movement in thedirection of the axis of the cigarette rod, and the angle of inclinationof the spindle 2 is such that the speed of translation of the knife isequal to the axial speed of the cigarette rod.

Referring to the modified form illustrated in Fig. 3, the outer pinion 6is replaced by a pinion 7, the spindle 18 of whichis large enough toform a bearing for a spindle 19 which carries a blade 20. The bearingfor the spindle 19 is formed at an angle in the I spindle 18 of thepinion 17 and the angle is blade, previously described, and the circularblade is rotated by securing the knife car rier spindle to a pinionmeshing with a large 7 fixed sun gear and dispensing with the eX-tension on the knife clamp, which in the case of the fixed blade,engages with a forked element mounted on the disc.- The spindle of theknife carrier is rotatable in anobliquely bored bush which isconstructed and driven in the manner shown'in- Fig.1 3; p

From thea-bove description it will be observed that the cutting devicewhich forms v the subject matter of thefpresent invention I comprisesthe principle disclosed in Fig; 7 of Us S. Patent No;11,630,132,therlifierence bethat instead of a parallel link-mechanismbeing provided for maintaining the spindle which carries the cuttingblade parallel: to the axis of the cigarette rod, thesaid spindle isarrangedto extend through the disc" and engage with ar b'eari'ng formedin agear mounted on the discv which maintains they said spindle'parallelto the axis of the cigarette rod. p a V 1 Thus itwill be s'eenthataccording to the present invention the cutting 'blade'ismain- 'tained atright angles to the axis of the cigarette rod during-the rotationoff'the same about'the axis of the plate,--.and at the'same timeiemovedin the direction of the axis-of the cigarette red at the axial speed ofthe rod during the cutting operation.

7. What we claim as our lnvention and desire to secureby Letters Patentis:- v

1. In a cutting device for severing an axially moving rod. thecombination with a rdta-t-able shaft, saidshaft' being angularlydisposed with respect to a plane normal to the direction of movementofthe rod, of a cutting blade, and means carried by said shaft forsupporting said cut-tingblade for rotation with said shaft and" formaintaining said blade in planes normal to the direction'of movement ofsaid rod, said meansainclud ing an element rotatable about an axisparallel to the axis of said'shaft and having a journal portion disposedparallel to-the direc tion of movement of the rod for rotatably engagingsaid blade, and mechanism for rotatingsaid element at the speed ofrotation of said shaft and in the reverse direction.

2. In a cutting device for severing an axially moving rod, thecombination with a rotatable shaft,said shaft being angularly e ing. 7

disposed with respect to a plane normal to the direction of movement ofthe rod, of a cutting blade, and means carried by said shaft forsupporting said cutting blade for rotation with said shaft and formaintaining said blade in planes normal to the direction of movement ofsaid rod, said means including an element. rotatable aboutanvaaxissparallel to the axis of said shaft and having a jour-e ofmovementofsaid rod,sal-id;meansi includ ing an arm supported "onsaid-shaft -an: ele-,

ment carried by said arm'for rotation about anax-is parallel-to the axisofthe. shaft; said element having a. journal portionz disposed parallelto the directionof movement ofthe rod-for rotatablyengaging said blade,and

mechanism forrotating. said element'at the speed of rotationof saidshaftandinthe reversedirectioni;

, 4; a cutting device' for severing; an axial ly movinggrod,the'combination with a; rotatable shaft,'said shaft beingangulanlydisposed with respect to a plane-normal-to the direction ofmovement of. the rod, of acutting blade, and means; carried by said.-shaft for supporting said cutting blade for rota"- tion with said-shaftand for maintaining said blade in planes normal to the direction ofmovement of, said. rod, said means including an. arm supported on saidshaft, an eccentric bushing ournalledzin. said arm, a stud carrying.said blade and journalled in said bushmg, and means for rotating saidbush- 5. In acutting device for severing an axially moving rod, thecombination with a rotatable shaft, said shaft being angularlydisposedwith respect to a plane normal to the dlrection of movement of the rod,of acuttmg blade, an'arm carried by saidshaft, and constituting thesolesupport for, saidbl-ade, and means for maintaining said blade inplanes normal to the direction ofmpvement of the rod when said shaft isrotated.

6. In a cutting device for severing an axially moving rod, the'combination with arotatable shaft, said shaft being angularl'y'disposedwith'resp'ect to a plane normal to the direction of movement of thero'd,of acutting blade, and means carried by said shaft not for supportingsaid cutting blade for rotation with said shaft and for maintaining saidblade in planes normal to the direction of movement of said rod, saidmeans including an arm supported on said shaft, an element carried bysaid arm for rotation about an axis parallel to the axis of the shaft,said element having a journal portion disposed parallel to the directionof movement of the rod for rotatably engaging said blade, mechanism forrotating said element at the speed of rotation of said shaft and in thereverse direction, said mechanism comprising a fixed gear, a gearcarried by said element, and a gear meshing with both of said gears andcarried by said arm.

In testimony whereof we hereunto afiix our signatures.

.WALTER EVERETT MOLINS. ALBERT ALEXANDER STONE.

